137394337 has 2 divisors, whose sum is σ = 137394338. Its totient is φ = 137394336.

The previous prime is 137394317. The next prime is 137394343. The reversal of 137394337 is 733493731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111598096 + 25796241 = 10564^2 + 5079^2 .

It is a cyclic number.

It is not a de Polignac number, because 137394337 - 2²³ = 129005729 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 137394337.

It is not a weakly prime, because it can be changed into another prime (137394317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68697168 + 68697169.

It is an arithmetic number, because the mean of its divisors is an integer number (68697169).

Almost surely, 2^137394337 is an apocalyptic number.

It is an amenable number.

137394337 is a deficient number, since it is larger than the sum of its proper divisors (1).

137394337 is an equidigital number, since it uses as much as digits as its factorization.

137394337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 142884, while the sum is 40.

The square root of 137394337 is about 11721.5330481981. The cubic root of 137394337 is about 516.0078131641.

It can be divided in two parts, 137394 and 337, that added together give a palindrome (137731).

The spelling of 137394337 in words is "one hundred thirty-seven million, three hundred ninety-four thousand, three hundred thirty-seven".